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Below is a table of the Atmos Energy shares outstanding history going back to 1/28/2010:
Also see: ATO Market Cap History ATO YTD Return |
As of 5/1/2026 Atmos Energy has 166.92 million ATO shares outstanding. Investors often track the ATO shares outstanding history to compare shareholder return trends against the change in share count over time.
This page shows ATO share count trends over time, with 67 historical shares outstanding datapoints presented, dating back to 1/28/2010.

| ATO Shares Outstanding History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the Atmos Energy shares outstanding history going back to 1/28/2010:
Also see: ATO Market Cap History ATO YTD Return |
| ATO Shares Outstanding History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atmos Energy Historical Shares Outstanding: +3.66% CAGR
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| ATO Stock Price Chart |
| About Atmos Energy Corp. |
| Atmos Energy Corporation is a natural gas-only distributor. Co. delivers natural gas to over 3.3 million distribution customers in over 1,400 communities across eight states located primarily in the South. Co. manages proprietary pipeline and storage assets, including intrastate natural gas pipeline systems in Texas. Its segments include distribution, and pipeline and storage. The distribution segment comprises its regulated natural gas distribution and related sales operations in eight states. The pipeline and storage segment comprises the pipeline and storage operations of its Atmos Pipeline-Texas (APT) division and its natural gas transmission operations in Louisiana. We show 67 historical shares outstanding datapoints in our coverage of ATO's shares outstanding history. Understanding the changing numbers of Atmos Energy shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like Atmos Energy versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching Atmos Energy by allowing them to research Atmos Energy shares outstanding history as well as any other stock in our coverage universe. |
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| Video: Shares Outstanding Importance | |
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| ATO Share Performance |
| Shares Outstanding Peers |
| Atmos Energy (ATO) is categorized under the Utilities sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:
AVA Shares Outstanding History AWK Shares Outstanding History AWR Shares Outstanding History BEP Shares Outstanding History BIP Shares Outstanding History BKH Shares Outstanding History BWC Shares Outstanding History CAFD Shares Outstanding History CDZI Shares Outstanding History CEG Shares Outstanding History More Utilities companies » |
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